CN113410088B

CN113410088B - 10kv outdoor pole-mounted switch equipment

Info

Publication number: CN113410088B
Application number: CN202110563735.5A
Authority: CN
Inventors: 王刚
Original assignee: Weisheng Energy Technology Co ltd
Current assignee: Weisheng Energy Technology Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2023-06-23
Anticipated expiration: 2041-05-24
Also published as: CN113410088A

Abstract

The invention discloses a 10kv outdoor pole-mounted switch device, which comprises: the switch comprises a switch body, an incoming line module and an outgoing line module, wherein the switch body comprises a secondary channel, and the secondary channel is arranged in the switch body; the wire inlet module is connected with the switch body and comprises a wire inlet terminal, a conductive rod and an electronic current-voltage sensor, wherein the wire inlet terminal is connected with the conductive rod, the conductive rod is connected with the switch body, the outer surface of the conductive rod is provided with threads, and the electronic current-voltage sensor is screwed with the threads on the conductive rod; the outgoing line module is connected with the switch body and comprises a conductive rod and an outgoing line terminal, and the outgoing line terminal is connected with the switch body through the conductive rod. The connection mode of screw thread connects soon makes things convenient for follow-up operation equipment to overhaul, maintain and change, does not have the assembly clearance after electronic type current-voltage sensor and the conducting rod assembly to make product partial discharge little, in addition, electronic type current-voltage sensor can gather overhead line's voltage and current data, has increased line fault criterion, and then improves line fault identification's accuracy.

Description

10kv outdoor pole-mounted switch equipment

Technical Field

The invention relates to the technical field of pole-mounted switches, in particular to 10kv outdoor pole-mounted switch equipment.

Background

The current data collected on the outdoor column only has phase current and zero sequence current, the distribution switch monitoring terminal compares the protection setting data with the current real-time data of the switch equipment on the outdoor column collected by the distribution switch monitoring terminal, and when the real-time data is large, the distribution switch monitoring terminal issues a switch-off instruction to the switch equipment on the outdoor column, so that the protection effect on a distribution line is achieved. However, the protection setting data of the distribution switch monitoring terminal in the protection mode cannot comprehensively collect line fault conditions, and particularly the line fault types cannot be effectively judged under the condition that the outdoor overhead line equipment has more transient faults, so that the power failure times and the power failure time are increased.

The 10kv outdoor pole-mounted switching equipment in the prior art can only collect phase current and zero sequence current, the line fault identification accuracy is poor, the current transformer is in a penetrating mode, an assembly gap is formed after the current transformer is assembled with a primary loop conducting rod, gap discharge exists, the product is locally amplified, and the line has frequent power failure times, long power failure time and poor power supply reliability. The solid-sealed pole for the secondary fusion breaker switch disclosed in patent publication No. CN111710555A has an assembly gap after the sensor and the conducting rod are assembled.

Disclosure of Invention

In view of the shortcomings of the prior art, the invention aims to provide 10kv outdoor pole-mounted switching equipment, which can collect real-time data of overhead lines more accurately and effectively classify faults, so that the power failure times are reduced, and the power supply reliability is improved.

In order to achieve the above object, the present invention provides a 10kv outdoor pole-mounted switching apparatus, the 10kv outdoor pole-mounted switching apparatus comprising:

the switch body comprises a secondary channel, and the secondary channel is arranged in the switch body;

the wire inlet module is connected with the switch body and comprises a wire inlet terminal, a conductive rod and an electronic current-voltage sensor, wherein the wire inlet terminal is connected with the conductive rod;

and the outgoing line module is connected with the switch body and comprises a conductive rod and an outgoing line terminal, and the outgoing line terminal is connected with the switch body through the conductive rod.

Optionally, the outgoing line module is disposed at a side end of the switch body.

Optionally, the electronic current-voltage sensor is an integrated electronic current sensor and electronic voltage sensor.

Optionally, the switch body includes:

the chassis is arranged at the bottom of the switch body;

the insulation system is arranged at the upper part of the case;

and the vacuum arc extinguishing chamber is arranged in the insulation system.

Optionally, the incoming line module is connected with the external overhead line electronic current voltage sensor through a secondary channel, and the secondary channel is arranged in the insulation system.

Optionally, the insulation system comprises:

the upper pillar barrel is arranged at the lower end of the electronic current-voltage sensor;

the lower prop barrel is arranged at the lower end of the upper prop barrel;

an insulating pull rod is arranged in the lower support column cylinder.

Optionally, the upper strut cylinder and the lower strut cylinder are connected by a flange.

Optionally, the vacuum arc-extinguishing chamber is flexibly connected with the flange.

Optionally, the flange is connected to the conductive rod.

Optionally, the insulating pull rod comprises an adjusting head, and the adjusting head is arranged in the chassis.

Optionally, the incoming line module is electrically connected with an external overhead line.

The invention provides 10kv outdoor pole-mounted switch equipment, which comprises a switch body, a wire inlet module and a wire outlet module, wherein the switch body comprises a secondary channel, and the secondary channel is arranged in the switch body, so that the protection level of the 10kv outdoor pole-mounted switch is enhanced, and the effects of dust prevention and water prevention are better achieved; the outer surface of the conducting rod is provided with threads, and the electronic current and voltage sensor is screwed with the threads on the conducting rod. The connection mode of screw thread connects soon makes things convenient for follow-up operation equipment to overhaul, maintain and change, does not have the assembly clearance after electronic type current-voltage sensor and the conducting rod assembly to make product partial discharge little, in addition, electronic type current-voltage sensor can gather overhead line's voltage and current data, has increased line fault criterion, and then improves line fault identification's accuracy.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a 10kv outdoor pole-mounted switching device according to a specific embodiment of the present invention;

fig. 2 is a schematic structural diagram of a 10kv outdoor pole-mounted switching device in the prior art.

Description of the reference numerals

1-a case; 2-a vacuum arc extinguishing chamber; 3-an insulation system; 31-upper prop; 32-a lower prop; 33-an insulating pull rod; 4-an incoming line terminal; 5-an outgoing line terminal; 6-conducting rods; 7-an electronic current-voltage sensor; 8-secondary channels; 9-a flange; 10-conductive bars; 331-adjusting head; 332-contact compression springs; 7' -current sensor; 8' -secondary channel.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and more specific, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The embodiment of the invention provides 10kv outdoor pole-mounted switching equipment, which is shown in fig. 1, and comprises a switch body, a wire inlet module and a wire outlet module, wherein the switch body comprises a secondary channel 8, and the secondary channel 8 is arranged in the switch body; the wire inlet module is connected with the switch body and comprises a wire inlet terminal 4, a conductive rod 6 and an electronic current and voltage sensor 7, the wire inlet terminal 4 is connected with the conductive rod 6, the conductive rod 6 is connected with the switch body, the outer surface of the conductive rod 6 is provided with threads, and the electronic current and voltage sensor 7 is screwed with the threads on the conductive rod 6; the outgoing line module is connected with the switch body and comprises a conductive rod 10 and an outgoing line terminal 5, and the outgoing line terminal 5 is connected with the switch body through the conductive rod 10. The connection mode of screw thread connects soon makes things convenient for follow-up operation equipment to overhaul, maintain and change, does not have the assembly clearance after electronic current voltage sensor 7 and the conducting rod 6 assembly to make product partial discharge little, electronic current voltage sensor 7 can gather current data again can gather voltage data, has increased line fault criterion, thereby has improved the accuracy of line fault discernment, and then has shortened the outage time, has reduced the outage scope, has reduced the outage number of times, has improved the reliability of power supply.

In the embodiment of the application, the electronic current and voltage sensor 7 is formed by combining the electronic current sensor and the electronic voltage sensor in a modularized manner, so that current data and voltage data can be collected, the number of accessories of equipment is reduced, the product percent of pass is increased, and the cost is reduced.

In an embodiment of the present application, a switch body includes: the vacuum interrupter comprises a case 1, an insulation system 3 and a vacuum interrupter 2, wherein the case 1 is arranged at the bottom of a switch body, the insulation system 3 is arranged at the upper part of the case 1, and the vacuum interrupter 2 is arranged in the insulation system 3. The machine case 1 is arranged at the lower end of the insulation system 3, the machine case 1 and the insulation system 3 are integrally arranged, the integral construction and installation are convenient, and the connection is convenient, safe and reliable. The switch body and the electronic current and voltage sensor 7 can be detached, so that when the electronic current and voltage sensor 7 is out of line, only the electronic current and voltage sensor 7 can be replaced without replacing the whole 10kv outdoor pole-mounted switch equipment, thereby reducing the cost.

In the embodiment of the application, the electronic current-voltage sensor 7 is connected with the chassis 1 through the secondary channel 8, and the secondary channel 8 is arranged inside the insulation system 3, so that an electric signal in the electronic current-voltage sensor 7 can be transmitted to the chassis 1. The secondary channel 8 is arranged inside the switch body, so that the protection level of the switch on the 10kv outdoor column is enhanced, and the dustproof and waterproof effects are better achieved.

In the embodiment of the present application, the insulation system 3 includes: an upper column tube 31, a lower column tube 32, and an insulating pull rod 33, the upper column tube 31 is provided at the lower end of the electronic current-voltage sensor 7, the lower column tube 32 is provided at the lower end of the upper column tube 31, and the insulating pull rod 33 is built in the lower column tube 32.

In the embodiment of the present application, the upper strut cylinder 31 and the lower strut cylinder 32 are connected by the flange 9. The structure is simple and reasonable, and the cost is lower. The vacuum arc-extinguishing chamber 2 is flexibly connected with the flange 9, the flexible connection has contractibility, and because the equipment moves up and down when opening and closing, a large resistance exists when a rigid connecting piece is used, and the flexible connection overcomes the resistance. The vacuum arc-extinguishing chamber 2 is used as a core element of a 10kv outdoor pole switch, and has the main function of performing a circuit closing or opening function, which is equivalent to the function of a switch. The flange 9 is connected with the outlet terminal 5 through the conductive rod 10, and the flange 9 can be connected with the upper support column barrel 31 and the lower support column barrel 32 and has a conductive effect. The incoming line terminal 4 and the outgoing line terminal 5 are connected with an external overhead line, so that the incoming line terminal 4 and the outgoing line terminal 5 communicate with the external overhead line.

In the embodiment of the present application, the insulating pull rod 33 includes an adjustment head 331, and the adjustment head 331 is disposed in the chassis 1. Further, the insulating tie rod 33 is provided with a contact compression spring 332. The contact compression spring 332 can act as a fastener when installed.

In the embodiment of the application, the inlet wire module is connected with outside overhead line electricity for the electric current flows in the inlet wire module from outside overhead line, flows through the switch body, flows from the module of being qualified for next round of competitions.

The embodiment of the invention also provides 10kv outdoor pole-mounted switch equipment in the prior art, referring to fig. 2, the sensor of the 10kv outdoor pole-mounted switch equipment provided in the prior art is a current sensor 7', only can provide phase current and zero sequence current, and has poor line fault identification accuracy, referring to fig. 1, compared with the sensor, the sensor of the invention is an electronic current-voltage sensor 7, and can collect voltage and current data of an overhead line, thereby increasing line fault criteria and further improving the accuracy of line fault identification. The current sensor 7' in the prior art is connected with the conductive rod 10 in a penetrating way, an assembly gap is formed after the current sensor is assembled with the conductive rod 10, and gap discharge exists, so that the product is locally amplified; the invention is provided with the conducting rod 6, the conducting rod 6 is arranged at the upper end of the switch body, the outer surface of the conducting rod 6 is provided with threads, the electronic current-voltage sensor 7 is screwed with the threads on the conducting rod 6, and an assembly gap is not formed after the electronic current-voltage sensor 7 and the conducting rod 6 are assembled, so that the partial discharge of a product is small. In addition, the secondary channel 8' in the prior art is arranged outside the 10kv outdoor pole-mounted switch equipment, and the secondary channel 8 is arranged inside the switch body, so that the protection level of the 10kv outdoor pole-mounted switch is enhanced, and the dustproof and waterproof effects are better achieved.

Those of ordinary skill in the art will realize that the foregoing general description and the following detailed description are illustrative of specific embodiments of the present invention and are not intended to be limiting.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps, but may include other steps not expressly listed or inherent to such process or method. Likewise, without further limitations, one or more devices or subsystems beginning with "comprising". A "neither does an element or structure or component have no further limitations, excluding the presence of other devices or other subsystems or other elements or other structures or other components or other devices or other subsystems or other elements or other structures or other components. The appearances of the phrases "in one embodiment," "in another embodiment," and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present invention and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the following claims.

Claims

1. A 10kv outdoor pole-mounted switching device, characterized in that the 10kv outdoor pole-mounted switching device comprises:

the switch body comprises a secondary channel (8), and the secondary channel (8) is arranged in the switch body;

the switch body includes: the case (1) is positioned at the bottom of the switch body; an insulation system (3) arranged at the upper part of the case (1); the chassis and the insulation system are integrally arranged; a vacuum arc extinguishing chamber (2) which is arranged in the insulation system (3);

the wire inlet module is connected with the switch body and comprises a wire inlet terminal (4), a conductive rod (6) and an electronic current-voltage sensor (7), wherein the wire inlet terminal (4) is connected with the conductive rod (6), the conductive rod (6) is connected with the vacuum arc-extinguishing chamber (2) of the switch body, the outer surface of the conductive rod (6) is provided with threads, and the electronic current-voltage sensor (7) is screwed with the threads on the conductive rod (6); the switch body and the electronic current-voltage sensor can be detached; the electronic current-voltage sensor (7) is connected with the chassis (1) through the secondary channel (8), and the secondary channel (8) is arranged inside the insulation system (3); the electronic current and voltage sensor is integrated with the electronic current sensor and the electronic voltage sensor; the incoming line module is electrically connected with an external overhead line;

the outgoing line module is connected with the switch body and comprises a conductive rod (10) and an outgoing line terminal (5), and the outgoing line terminal (5) is connected with the switch body through the conductive rod (10).

2. A 10kv outdoor pole-mounted switching device according to claim 1, characterized in that the insulation system (3) comprises:

an upper column tube (31) provided at the lower end of the electronic current-voltage sensor (7);

a lower column casing (32) provided at the lower end of the upper column casing (31);

an insulating tie rod (33) is built in the lower strut tube (32).

3. A 10kv outdoor pole-mounted switching device according to claim 2, characterized in that the upper pole section (31) and the lower pole section (32) are connected by means of a flange (9).

4. A 10kv outdoor pole-mounted switching device according to claim 3, characterized in that the vacuum interrupter (2) is in soft connection with the flange (9).

5. A 10kv outdoor pole-mounted switching device according to claim 3, characterized in that the flange (9) is connected to the conductive rod (10).

6. A 10kv outdoor pole-mounted switching device according to claim 2, characterized in that the insulating tie rod (33) comprises an adjustment head (331), the adjustment head (331) being arranged within the cabinet (1).